Invitro Analysis of Time-Kill Curves of Some Antimicrobial Agents Against Salmonella Typhi

Abstract

Due to the high prevalence of typhoid fever and the periodic nature of Salmonella infections despite the various antimicrobial agents used to treat these infections, the need to open up new strategies for antimicrobial susceptibility rather than the MIC alone arises. This study determines the time-kill curves using four different antimicrobial agents: Gentamicin, Ceftriaxone, Cloxacillin, and Ofloxacin at different concentrations of 1x, 2x, and 4x of their respective MICs. The finding of this study reveals that at 1x MIC, all the antimicrobial agents used, except for Gentamicin, show non-bactericidal activity against the isolates after eight hours of exposure. This study suggests that analyzing the time-kill curves in typhoid fever treatment will help determine the appropriate dose to treat the infection.